Why could newly bought apps stop appearing in MDM?

Apple usescontent tokens (also referred to as server tokens)to link Apple Business Manager (ABM) with MDM solutions for license distribution. Apple Learning explains that these tokens are time-bound and eventually expire, requiring administrators to renew them from ABM and upload the updated token to the MDM. When the token expires, synchronization between ABM and the MDM breaks, causing newly purchased apps and books to stop appearing in the MDM console. The APNs token, while also expiring annually, only affects push notifications, not app license syncing. The creation of new locations or password changes do not invalidate purchased app syncs unless tied directly to the token. The most common and documented reason for this issue is an expiredcontent/server token, which must be refreshed.